Shock absorber



A. L. HARRIS SHOCK ABSORBER I Filed 001:. 8, 1925 p .5 Z H i 0 M w m, z

INVENTOR WITNESS:

A'ITORNEY Patented Dec. 16', 1924.

PATENT OFFICE;

ALBERT L. HARRIS, F AUSTIN, TEXAS.

SHOCK ABSORBER.

Application filed October 8, 1923. Serial No. 667,333.

To all whom it may concern: v

Be it known that I, ALBERT L. HARnis; a citizen of the United States, residing at Austin, in the county of Travis and State of :Lexas, have invented new and useful Im-' provements in Shock Absorbers; of which the following is a specification.

This invention relates to a'shock absorber mainly designed for motor vehicles, the general object'of the invention being to provide a cylinder part containing liquid and a piston part in the cylinder and the movement of which is checked by the liquid there- -in with means for connecting one part to thebody of the vehicle and the other part to the chassis thereof. v

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to" be* hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.. 1 In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding arts throughout the several views, and in w iich Figure 1 is a view showing the device in US8- F' ure 2- is an enlarged longitudinal sectiona view.

Figure 3 is a sectionon line 33,of Fig-- ure 2.

As shown in these views the device comprises a cylinder 1 and a piston 2, the pistor. rod 3 of which passes through a packing gland 4 at one end of the cylinder. The

cylinder is filled with oil or the like andit 10 is provided with a bypass 5 which connects the front end of the cylinder with therear end. Communication between the rear end A of the cylinder and the bypass is controlled by a needle valve 6 and said bypass may be provided with a lpllug closed filling opening as shown at 6. 1e piston is provided-with )orts 7 which are controlled by a disc valve movabl held to the rear face of the pis- 1 by e bolt 9. Thus the {piston can We freely from the rear end 9 the cylinder to the front end thereof as the valve twill open and permit the oil to pass from one side of the piston to-the other but on the return stroke the valve will se itself and. prevent the passage of oil through the ports so that the oil must pass thrtmgh the bypass which is restricted by the needle valve so that the piston can move but slowly on its return stroke. A pair of discs 10 are held on the piston rod by. the nuts 11 and the forked end of the bell crank lever 12, the ends.of the prongs of which are rounded engaging said discs; This bell crank lever may be fastenedto the axle or a part of a spring by the connections 13 avhile the piston is connected to a part of the frame by the brackets 14. It will of course be" understood that the device can be attached in any desired manner to any desired parts.

It will be seen that the device will act to check the rebound of the springs and thus make more comfortable riding and prevent damage to the springs.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may the fluid from passing through the ports .when the piston is inoving'i'n one direction,

a filling nipple on the bypass, a plug for closing the same. nieans for connecting the piston and cylinder witha part of a vehicle, such means including a bell crank lever make changes in the construction-and in the combination and arrangement of the several therein; a valve plate inovably connected with one face of the piston and preventing having one end forked and a pair of discs Y on the piston rod between which the forked ends are located.

In testimony whereof I affix my signature.

ALBE RT L. .HABRIS. 

